Navigation Links
Greener memory from random motion
Date:3/1/2010

Random thermal fluctuations in magnetic memory can be harnessed to reduce the energy required to store information, according to an experiment reported in the current issue of Physical Review Letters. The development could lead to computer memory that operates at significantly lower power than conventional devices. Markus Mnzenberg of Universitt Gttingen and Jagadeesh Moodera of MIT describe the potential route to greener magnetic memory in a Viewpoint in the latest issue of APS Physics (physics.aps.org).

Heat is usually a problem when it comes to storing digital data. At the microscopic level, the molecules and atoms of anything at a temperature above absolute zero are in constant motion. Because magnetic memory relies on controlling and measuring the orientation of tiny magnetic particles, the jostling that comes about as components warm up can potentially scramble data. Thermal issues are a major concern as researchers build increasingly dense and fast magnetic memory. But heat isn't entirely bad, according to a collaboration of Italian and American physicists that has shown that random thermal motions can be helpful for writing magnetic data. Essentially, they found that applying an electrical current that should be too modest to record data can still be effective for writing information because thermal motion gives an added boost to help orient magnetic particles.

The researchers confirmed the effect by measuring magnetic fluctuations as the particles that make up memory were being aligned. Thermal motions are random, which in turn causes random variations in the amount of time it takes for magnetic particles to line up. The fact that alignment times ranged from one to a hundred billionths of a second made it clear that random, temperature-dependent motion must be at work in helping to flip the particles.

The experimental confirmation of the thermal effects on magnetic memory points the way to new, thermally-assisted data writing schemes. The advances could reduce the power required to store information, potentially helping to ensure that future PCs are increasingly green machines.


'/>"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
Source:Eurekalert  

Related biology technology :

1. Just Say No To Charcoal! New Eco-Friendly Alternative Grills Faster, Burns Cleaner And Greener
2. Gold-palladium nanoparticles achieve greener, smarter production of hydrogen peroxide
3. Memory Study Enrolling Participants Evaluating Memory Loss Vitamin
4. MedShape Solutions, Inc. Announces First FDA-cleared Shape Memory PEEK Device; Closing of $10M Equity Offering
5. Graphitic memory techniques advance at Rice
6. Accera, Inc. to Support the Alzheimers Foundation of Americas National Memory Screening Day Through On-line Awareness Effort
7. Practice makes perfect -- motor memory possible for neuroprosthetic control
8. A billion-year ultra-dense memory chip
9. Putting the squeeze on an old material could lead to instant on electronic memory
10. Mental Stimulus Package: Government Officials who Forgot to Pay Taxes Will Receive Free Memory-boosting Supplement
11. Mindset BioPharmaceuticals (USA) Inc Obtains Notice of Allowance for European Patent Related to Use of Insulin Sensitizers in Senile Dementia, Dementia and Memory Loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Greener memory from random motion
(Date:5/25/2016)... ... ... Lady had been battling arthritis since the age of two and at ... owner Hannah sought the help of Dr Jeff Christiansen of Superior Veterinary Surgical ... and help with the pain of Lady’s arthritis. Dr Christiansen suggested that in conjunction ...
(Date:5/24/2016)... , May 24, 2016   MedyMatch Technology Ltd ., ... artificial intelligence, real-time decision support tools in the emergency room, ... the 2016 Israeli Advanced Technology Industries (IATI) BioMed Conference. ... Israel,s 15th National Life Sciences and Technology Week, ... David Intercontinental Hotel in Tel Aviv, Israel ...
(Date:5/23/2016)... ... ... blood donations in South Texas and across the nation is growing. , But according to ... are on the decline. In fact, donations across the country are at their lowest point ... the last four years alone. , There is no substitute for blood. , “We want ...
(Date:5/23/2016)... Oxitec CEO Hadyn Parry will testify ... before the United States House Committee on Science, Space and ... controlling the spread of the Aedes aegypti mosquito, ... (Logo: http://photos.prnewswire.com/prnh/20150630/227348 ) Oxitec has pioneered ... in Brazil , Panama ...
Breaking Biology Technology:
(Date:3/14/2016)... 2016 NXTD ) ("NXT-ID" or the ... announces the airing of a new series of commercials on ... March 21 st .  The commercials will air on Bloomberg ... on the Street show. --> NXTD ) ("NXT-ID" ... commerce market, announces the airing of a new series of ...
(Date:3/10/2016)... --> --> ... and Access Management Market by Component (Provisioning, Directory Services, ... Organization Size, by Deployment, by Vertical, and by Region ... market is estimated to grow from USD 7.20 Billion ... a Compound Annual Growth Rate (CAGR) of 12.2% during ...
(Date:3/9/2016)... PALM BEACH GARDENS, Fla. , March 9, ... of identity management authentication and enrollment solutions, today ... proven DigitalPersona ® Altus multi-factor ... enable IT and InfoSec managers to step-up security ... friction.  Washington, DC ...
Breaking Biology News(10 mins):